Hardness conversion table

Convert between Rockwell, Brinell, Vickers and other hardness scales with this side-by-side conversion table.

Hardness conversion table
Brinell hardness (BHN) Vickers hardness (HV) Rockwell hardness (HRB) Rockwell hardness (HRC)
86 90 — —
95 100 56.2 —
105 110 62.3 —
114 120 66.7 —
124 130 71.2 —
133 140 75.0 —
143 150 78.7 —
152 160 81.7 —
162 170 85.0 —
171 180 87.1 —
181 190 89.5 —
190 200 91.5 —
199 210 93.5 —
209 220 95.0 —
219 230 96.7 —
228 240 98.1 —
238 250 99.5 —
242 255 — 23.1
252 265 — 24.8
261 275 — 26.4
266 280 — 27.1
276 290 — 28.5
280 295 — 29.2
295 310 — 31.0
304 320 — 32.2
314 330 — 33.3
323 340 — 34.4
333 350 — 35.5
342 360 — 36.6
352 370 — 37.7
361 380 — 38.8
371 390 — 39.8
380 400 — 40.8
390 410 — 41.8
399 420 — 42.7
409 430 — 43.6
418 440 — 44.5
428 450 — 45.3
437 460 — 46.1
447 470 — 46.9
456 480 — 47.7
466 490 — 48.4
475 500 — 49.1
485 510 — 49.8
494 520 — 50.5
504 530 — 51.1
513 540 — 51.7
523 550 — 52.3
532 560 — 53.0
542 570 — 53.6
551 580 — 54.1
561 590 — 54.7
570 600 — 55.2
580 610 — 55.7
589 620 — 56.3
599 630 — 56.8
608 640 — 57.3
618 650 — 57.8